OGY SOUND

Until this point my experience with the Full OGYs is resumed to three different tube integrated amps:

1 - Aurorasound HFSA-01 (EL84 tubes, push-pull, hybrid design: solid state preamp and tube power amp)
This was the amp in the dealer’s system when I first listened to the speakers.
A superb amp with the only minus: the lack of a volume remote control… and perhaps the price

2 - Synthesis Soprano (EL84 tubes, push-pull, hybrid design: solid state preamp and tube power amp)
A wonderful little amp with marvelous sound that even drove the Magnepan LRS+.
I have also tested the LE (Limited Edition) but although NOS it was defective and was sent to the factory… with zero results and a poor customer service.

3 - Line Magnetic LM-211ia (EL34 tubes, triode / ultralinear modes)
My current tube amp, a Western Electric design rejuvenated by this Chinese company with top notch build quality.
The stock tubes allowed decent sound but a recent change to the Psvane Horizon (all tubes) was a revelation.
This amp has two operating modes (selected by a switch on the front panel), triode (more sweet) and ultralinear (more dynamic) and the choice is accordingly to the type of music used.
Also, it is equipped with binding posts for 4 and 8 ohms, and currently I prefer the last for the very slightly more robust and detailed sound.

Between the three amps, perhaps the advantage could be on the Aurorasound amp (for the design and high quality parts) but I haven’t tested it in my room. The Synthesis Soprano was discontinued.
The Line Magnetic is a great start, a quality piece with enough potential (tubes change demands it) to show the Full OGYs amazing sound, but I will continue to search a EL84 based tube amp… perhaps a Audionote OTO…

Meanwhile I have bought a pair of Antique Sound Lab Wave-8 (used but mint condition) that I delivered to a friend that is a super hi-fi technician, to have a deep modification. These monoblocs are based on the 6BM8 tube and although inexpensive in their day, were known for a great sound and a primer choice between big Klipsch aficionados.
… but I will have to wait 3-4 weeks go get them in the system.

Right now, my experiences with the Full OGYs don’t favor tube or solid state amps and that just show that the speakers are very well designed. If fact, they can sound completely different according to the amp used, one of my favorite characteristics and why they are my favorite and principal speakers

Audio Note OTO is build with el 84 tubes.
Never had an opportunity to listen to it but I suppose it should be great match. I very much like the el 84. This tube always sounded good with OGY when tried with other el 84 amps.
The Single Ended version especially should be excellent…

The antique Sound Lab Wave 8 monoblocs arrived yesterday from the repair shop. They were completely rebuilt with high quality parts and some major modifications were done to the design, that included the introduction of a Choke.
These little 8W amp, using a pair of 6BM8 tubes each (NOS) is being a tremendous surprise, although since all components are new they need some burn-in time.
Still, connected to the Placette Audio RVC passive preamp (and Denafrips Pontus II dac and Auralic Aries Femto) it is very impressive especially on less complex music. The small (average at best) transformers can’t provide all the juice that a big amp can, and although it is still very good in the end the Wave 8’s are all about the midband realism and beauty, on voices and instruments (those recorded with a microphone).
The result is in the way of a super transparent sound (with the help of the “invisible” Placette) with huge soundstage, with surprising depth and sense of air.
Also, it is important to mention, that out went the Klotz speaker cables to make place for the Belden 8471, a tinned copper cable that (along with the 9497) is used by tube and vintage aficionados from Japan. Great stuff!
But some more deep conclusions will be made two or three weeks from now

The Wave 8 monoblocs use was put on pause, mainly because I must get a different interconnect cable to use it with the Placette Audio RVC, that demands a short low capacitance cable.
Meanwhile the Line Magnetic LM-211ia (in triode mode) received a full set of Psvane Horizon tubes that elevated the performance to almost perfection. That led to a cables change, then to a speakers / chair position change and finally to a speakers isolation materials change.
This little integrated amp is a beast and is near flawless in my 17m2 dedicated listening room. Apart for the obvious tubes upgrade, it is the speaker cables changes that really made the difference. Luckily I have 7 different pairs of cables to try and after some tests (also with the help of Google Ai, to check materials compatibility) the winner was the Supra Ply 3.4S (from the amp to the OGYs) and the Mogami 3103 (from the OGYs to the Bass Units). This cascade configuration allowed me to use the amp’s 4 Ohm binding posts to get a very defined and tight bass, perhaps the most demanding aspect of setting up this speakers in my room.
As for the rest, well let me just say that the speakers are invisible and the sound hanging in the air with incredible depth and width.